Nothing shows under Summary on Dope Sheet and cannot insert keyframes, either - Blender 2.8 Beta
Select the rig model by pressing A in your keyboard the rig will get highlighted in orange in blender 2.8.3 that means everything is selected. right click outside the model but in the same panel ex : 3DViewport. press &quot;I&quot; to insert keyframe. it works for blender 2.8.3.